I put only 3 stars to this material ... which is worth more. I put them here as to alert consumers to the fact that I cheated a little of use. I wanted above all a freedom which I have not found because of the son and clamp principle. By car, for example, it's a bit annoying to have the belt that pulls the cables almost systematically and which suddenly withdrew the atria or in town, when you want to leave her because he warm jacket in stores , manage clipping the device and delivery of the atria. So I buy a true mono headset: The sound is much less (and of course not stereo), but the freedom is there. For those who are aware that the shape of Sony (and his son) is ok for them, no pb, it's good stuff.
